It's never been officially announced, but:

a) The last mobile bundle was the Humble Mobile Bundle 22, the corpse of which can still be seen if you go to https://www.humblebundle.com/mobile/

b) It was launched on the 5th of February. Notice the unfortunate and unintentional (?) URL for that blog entry. xD

c) Since then there hasn't been any new mobile bundle, and Mondays are now first-book-bundle-day-of-the-week (the other one being, of course, Wednesdays).

Awesome, awesome game. Favorite game I've played this year. There. I said it.

Biggest fault is that it's too short.

I'm still not seeing whatever out is you are seeing. When I search on the play store I get the game only as a result

Thanks for the info guys.

I had the game on my "follow list" on Steam and I did not know there was a mobile version. Getting it for my tablet is a good choice.

Or maybe it's just the game soundtrack.

That is, in fact, the game soundtrack album.

Thanks! i was befuddled.